Where does “त्रिवेदी” come from?

त्रिवेदी (Hindi) comes from Sanskrit त्रिवेदिन्, from Sanskrit त्रि, from Proto-Indo-Aryan tráyas, from Proto-Indo-Iranian tráyas, from Proto-Indo-European *tréyes.

Ancestry of “त्रिवेदी”, step by step

StepLanguageWordMeaning
1Sanskritत्रिवेदिन्familiar with the three Vedas
2Sanskritत्रिthree
3Proto-Indo-Aryantráyasthree
4Proto-Indo-Iraniantráyasthree
5Proto-Indo-European*tréyes
Every word from Proto-Indo-European *tréyesEvery word from Proto-Indo-Iranian tráyasEvery word from Proto-Indo-Aryan tráyas